On 13 May 2013, the Federal Administration of Public Revenue (AFIP) adopted General Resolution 3497 which introduces reference values on imports of various types of synthetic fabrics (such as polyester) originating from various Asian countries. The goods figure under the Mercosur Nomenclatures (NCM) 5513.12.00, 5513.23.10, 5513.39.11, and 5513.49.11. The corresponding reference prices are free on board (FOB) and range from USD 3.83to USD 8.47 The measure took effect on 21 May 2013.